CA2098661A1 - Procede de blanchiment de pate a papier - Google Patents
Procede de blanchiment de pate a papierInfo
- Publication number
- CA2098661A1 CA2098661A1 CA2098661A CA2098661A CA2098661A1 CA 2098661 A1 CA2098661 A1 CA 2098661A1 CA 2098661 A CA2098661 A CA 2098661A CA 2098661 A CA2098661 A CA 2098661A CA 2098661 A1 CA2098661 A1 CA 2098661A1
- Authority
- CA
- Canada
- Prior art keywords
- paper pulp
- bleaching paper
- borohydride
- pulp
- sodium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9212926A GB9212926D0 (en) | 1992-06-18 | 1992-06-18 | Method of bleaching paper pulp |
GB9212926.1 | 1992-06-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2098661A1 true CA2098661A1 (fr) | 1993-12-19 |
CA2098661C CA2098661C (fr) | 1997-06-03 |
Family
ID=10717309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2098661 Expired - Fee Related CA2098661C (fr) | 1992-06-18 | 1993-06-17 | Procede de blanchiment de pate a papier |
Country Status (10)
Country | Link |
---|---|
US (1) | US5562803A (fr) |
EP (1) | EP0587270B1 (fr) |
JP (1) | JP2948717B2 (fr) |
AT (1) | ATE160189T1 (fr) |
CA (1) | CA2098661C (fr) |
DE (1) | DE69315146T2 (fr) |
FI (1) | FI932848A (fr) |
GB (1) | GB9212926D0 (fr) |
NO (1) | NO301343B1 (fr) |
ZA (1) | ZA933906B (fr) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5582681A (en) | 1994-06-29 | 1996-12-10 | Kimberly-Clark Corporation | Production of soft paper products from old newspaper |
US6001218A (en) | 1994-06-29 | 1999-12-14 | Kimberly-Clark Worldwide, Inc. | Production of soft paper products from old newspaper |
US6074527A (en) | 1994-06-29 | 2000-06-13 | Kimberly-Clark Worldwide, Inc. | Production of soft paper products from coarse cellulosic fibers |
US6296736B1 (en) | 1997-10-30 | 2001-10-02 | Kimberly-Clark Worldwide, Inc. | Process for modifying pulp from recycled newspapers |
US6224548B1 (en) * | 1998-05-26 | 2001-05-01 | Ineedmd.Com, Inc. | Tele-diagnostic device |
US6387210B1 (en) | 1998-09-30 | 2002-05-14 | Kimberly-Clark Worldwide, Inc. | Method of making sanitary paper product from coarse fibers |
US7306698B2 (en) * | 2001-03-20 | 2007-12-11 | Biopulping International | Method for producing pulp |
US20040000383A1 (en) * | 2002-05-01 | 2004-01-01 | Henry Chou | Process for facilitating the use of high lignin containing waste paper in the manufacture of paper products |
US7074299B2 (en) * | 2002-05-01 | 2006-07-11 | Fort James Corporation | Process for using a phloroglucinol color delta to control blending, deinking and bleaching of groundwood-containing secondary pulp |
US20040211533A1 (en) * | 2003-04-28 | 2004-10-28 | Qiang Huang | Method for bleaching and color stripping recycled fibers |
CA2522144A1 (fr) * | 2004-10-15 | 2006-04-15 | Rohm And Haas Company | Methode pour le blanchiment de fibres ligneuses |
FI121114B (fi) * | 2007-05-04 | 2010-07-15 | Kemira Oyj | Ditioniitin valmistusmenetelmä |
US9932709B2 (en) * | 2013-03-15 | 2018-04-03 | Ecolab Usa Inc. | Processes and compositions for brightness improvement in paper production |
BR112012026176A2 (pt) * | 2010-04-14 | 2016-11-29 | Hoffmann La Roche | ''método para a seleção de um clone de célula e para a produção de um polipeptídeo e kit'' |
CN113174771A (zh) * | 2021-04-29 | 2021-07-27 | 玖龙纸业(东莞)有限公司 | 一种涂布白板纸浆料的三元漂白方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE638828A (fr) * | 1962-10-18 | |||
FR1401122A (fr) * | 1963-08-27 | 1965-05-28 | Metal Hydrides Inc | Procédé de blanchiment de la pulpe de bois |
NL6413774A (fr) * | 1964-11-26 | 1966-05-27 | ||
US3284283A (en) * | 1964-02-17 | 1966-11-08 | Fmc Corp | Production of wood pulps including treatment of cellulosic fibers with bisulfite ion followed by alkali metal borohydride |
SU536271A1 (ru) * | 1975-04-01 | 1976-11-25 | Пермский Филиал Всесоюзного Научно-Производственного Объединения Целлюлозно-Бумажной Промышленности | Способ отбелки волокнистой массы |
SE7806928L (sv) * | 1977-06-17 | 1978-12-18 | Ventron Corp | Reduktionsforfarande med ditionit och natriumborhydrid |
US4198266A (en) * | 1977-10-12 | 1980-04-15 | Airco, Inc. | Oxygen delignification of wood pulp |
DE3012184A1 (de) * | 1980-03-28 | 1981-10-08 | Siemens AG, 1000 Berlin und 8000 München | Lichtwellenleiterverzweigung |
CA1249402A (fr) * | 1984-12-21 | 1989-01-31 | Pulp And Paper Research Institute Of Canada | Avivage multi-etage des pates a fort et tres fort rendement |
SE8600615L (sv) * | 1985-02-15 | 1986-08-16 | Kamyr Ab | Hog ljushet astadkommes genom blekning av mekanisk massa, sasom kemisk-mekanisk massa (cmp), kemisk-termisk-mekanisk massa (ctmp) och liknande |
FR2639371B1 (fr) * | 1988-11-24 | 1995-04-14 | Atochem | Procede de blanchiment de pates desencrees |
DE4115575A1 (de) * | 1991-05-13 | 1992-11-19 | Brueggemann L Kg | Bleichmittel |
JP2827195B2 (ja) * | 1991-11-13 | 1998-11-18 | 日本電気株式会社 | 半導体記憶装置 |
GB9214041D0 (en) * | 1992-07-02 | 1992-08-12 | Morton Int Inc | Process for de-inking recycled paper pulp |
-
1992
- 1992-06-18 GB GB9212926A patent/GB9212926D0/en active Pending
-
1993
- 1993-06-03 ZA ZA933906A patent/ZA933906B/xx unknown
- 1993-06-10 DE DE69315146T patent/DE69315146T2/de not_active Expired - Fee Related
- 1993-06-10 EP EP19930304507 patent/EP0587270B1/fr not_active Expired - Lifetime
- 1993-06-10 AT AT93304507T patent/ATE160189T1/de active
- 1993-06-15 NO NO19932200A patent/NO301343B1/no unknown
- 1993-06-17 CA CA 2098661 patent/CA2098661C/fr not_active Expired - Fee Related
- 1993-06-17 JP JP14603193A patent/JP2948717B2/ja not_active Expired - Lifetime
- 1993-06-18 FI FI932848A patent/FI932848A/fi unknown
-
1994
- 1994-11-18 US US08/341,851 patent/US5562803A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0587270A1 (fr) | 1994-03-16 |
NO932200L (no) | 1993-12-20 |
ATE160189T1 (de) | 1997-11-15 |
NO932200D0 (no) | 1993-06-15 |
ZA933906B (en) | 1994-10-07 |
JP2948717B2 (ja) | 1999-09-13 |
DE69315146D1 (de) | 1997-12-18 |
NO301343B1 (no) | 1997-10-13 |
EP0587270B1 (fr) | 1997-11-12 |
JPH0657671A (ja) | 1994-03-01 |
FI932848A (fi) | 1993-12-19 |
GB9212926D0 (en) | 1992-07-29 |
CA2098661C (fr) | 1997-06-03 |
FI932848A0 (fi) | 1993-06-18 |
DE69315146T2 (de) | 1998-03-05 |
US5562803A (en) | 1996-10-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |